Drivers of biomass change in Europe: visual interpretation of a random sample

ESA CCI Biomass maps v.5 were used to identify drivers of biomass change between 2010 and 2020. Sample preparation involved the following steps: Generated a random sample across Europe where CCI Biomass reported values. Reduced sample size in Turkey and Ukraine by a factor of 10. Reduced sample size in areas with small changes (±25 t/ha) by a factor of 20. Reduced sample size in areas with "Improbable change" Quality Flag by a factor of 20. This resulted in 4,702 locations classified in Geo-Wiki.org using high-resolution imagery into the following categories: No changes, remains forest No changes, remains non-forest Not clear if any changes happend Gain: reforestation Gain: afforestation Gain: forest growth Gain: tree crops/agroforestry Gain: urban trees Loss: cropland Loss: tree/shrub crops Loss: roads/trails/buildings Loss: mining and crude oil extraction Loss: forest management Loss: wildfire Loss: insects and diseases Loss: windthrow Loss: other natural disturbances Not sure about drivers